Malicious PDF — malware analysis report

Static analysis result for SHA-256 74e64ed79e8ec3df…

MALICIOUS

PDF

43.8 KB Created: 2021-06-03 09:12:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 09010eebd874ed9409a1513f4bed6612 SHA-1: 06bd77064f8ce72d02e2024333a1bd5f1218ef7f SHA-256: 74e64ed79e8ec3dfef6247cc523213a0bc38961d0ef1c6cdc8f9f228b0d8d270
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents a fake CAPTCHA to lure the user into clicking a link, which is a common social engineering tactic. The embedded URL points to a resource that is likely a payload or further lure. The ML classifier also flagged this PDF as malicious, increasing confidence in its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.online/app/431946152/a-lot-of-robux-game-hack
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master-free-coins-twitter_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master-free-coins-amp_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/how-to-get-minecraft-java-free_GM479516143.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/how-to-earn-robux-on-roblox_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/how-do-you-hack-minecraft_GM479516143.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master-hack-355_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/roblox-free-pants_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/roblox-heroes-online_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/games-that-give-you-free-robux_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master-mod-apk_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master-daily-spin-link-app_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/free-rare-cards-for-coin-master_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/free-robux-no-offers_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/minecraft-free-download-mac-full-version-2021_GM479516143.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/hack-coin-master-spin-apk_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master-free-box_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master-hack-100-working_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/get-me-robux-for-free_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/download-coin-master-hack_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004fe7.bin
b9f2fe49fd7fa948c1b84c8c30408cef5f6bb0507b7f4e1fd8c3fe2bbaac22f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FE7 24952 bytes
font_01_sfnt_off00008938.bin
59ace597cf85b15723adf2883f87d3990bd92e723e57ffb30000155e26dd48af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8938 17952 bytes

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